81717664

素因数分解:

$2^5\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4099}}^1$

素因数の和:4205

約数の個数: 48

約数和(自身を含む): 185976000

約数和(自身を除く): 104258336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 89, 112, 178, 224, 356, 623, 712, 1246, 1424, 2492, 2848, 4099, 4984, 8198, 9968, 16396, 19936, 28693, 32792, 57386, 65584, 114772, 131168, 229544, 364811, 459088, 729622, 918176, 1459244, 2553677, 2918488, 5107354, 5836976, 10214708, 11673952, 20429416, 40858832, 81717664]

約数ペア:

[(1, 81717664), (2, 40858832), (4, 20429416), (7, 11673952), (8, 10214708), (14, 5836976), (16, 5107354), (28, 2918488), (32, 2553677), (56, 1459244), (89, 918176), (112, 729622), (178, 459088), (224, 364811), (356, 229544), (623, 131168), (712, 114772), (1246, 65584), (1424, 57386), (2492, 32792), (2848, 28693), (4099, 19936), (4984, 16396), (8198, 9968)]